[horde] dkimproxy

[Jamon Camisso]

I've spent a fair amount of time searching in vain for details on how to 
get horde sending on port 587. I've tried various combinations of 
smtphost, smtpport in my servers.php file, but to no avail.

I'm specifically after using dkimproxy and postfix with horde so that 
users get the benefits of signed messages without having to resort to a 
local client on their machine.

Is there something obvious that I'm overlooking here? My $servers 
section looks like this:

$servers['imap'] = array(
     'name' => 'IMAP Server',
     'server' => 'localhost',
     'hordeauth' => true,
     'protocol' => 'imap/ssl/novalidate-cert',
     'port' => 993,
     'maildomain' => '<snip>',
     'realm' => '',
     'smtphost' => 'localhost',
     'smtpport' => '587',
     'preferred' => '',
     'timeout' => array(IMAP_READTIMEOUT => 20, IMAP_WRITETIMEOUT => 20),
     'quota' => array(
//        'driver' => 'command',
         'driver' => 'imap',
         'params' => array(
             'quota_path' => '/usr/bin/quota',
             'grep_path' => '/bin/grep',
         )
     ),
);

Regards, Jamon